Electric locomotive.



W. COOPER.

ELECTRIC LOGOMOTIVE.

APPLIOATION FILED JULY 28, 1909.

Patented Feb. 28, 1911.

mums-$112M 1.

THE NORRIS PETERS co., wnsumarorv, a. c.

W. COOPER.

ELECTRIC LOCOMOTIVE.

APPLIOATION FILED JULY 2a, 1909.

Patented Feb. 28, 1911.

2 SHEETS-SEEM 2'.

WITNESSES:

1m: NORRIS PETCRS 110., wnsnmcnm, n. c,

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WILLIAM COOPER, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO WESTINGHOUSEELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

ELECTRIC LOCOMOTIVE.

Specification of Letters Patent.

Application filed July 28, 1909.

To all whom it may concern:

Be it known that I, l/VILLIAM Coornn, a citizen of the United States,and a resident of Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Improvement in ElectricLocomotives, of which the following is a specification.

My invention relates to driving connections for locomotives and othervehicles, and it has special reference to electric locomotives havingpropelling motors of relatively large size.

The object of my invention is to provide a driving connection that shallbe simple and durable in construction and effective in operation, andthat permits of an adjustment between the driving wheels of the vehicleand the .propelling motors, so that the motors may be rigidly mountedupon the vehicle body to operate without excessive wear.

When electric locomotives are adapted to haul very heavy loads, thepropelling motors are necessarily large in size, and, when the driversare relatively small, it has been found desirable to mount the motor ormotors within the vehicle cab and to establish an operative connectionbetween the motors and the driving wheels by means of connecting or siderods.

According to my present invention, I provide a connection of theabove-mentioned general class, but, in order to permit a maximumadjustment between the driving wheels and the vehicle body to which thepropelling motor is secured, I employ a jack shaft the center of whichis slightly above, and at a material distance to one side of, the centerof the driving wheel; a bell crank lever, one arm of which forms thedriving connection between the motor and the jack shaft and the otherarm of which forms a connection between the ack shaft and a horizontalcon necting rod, the opposite end of the horizontal rod being secured tothe driving wheel.

Figure 1 of the accompanying drawings is a side elevation and vation ofa portion of an electric locomotive equipped with my invention.

Referring to the drawings, the locomotive illustrated comprises a cab orbody .1, a

Fig. 2 is an end eleswivel truck 9, driving wheels 3 and a propellingmotor 4. The stationary frame 5 of the motor 4 is rigidly secured to thelocomotive frame 6 which forms part of the body 1 and is resilientlymounted on the driving wheels 3, a portion of the weight being borne bythe swivel truck 2, in the usual manner.

It will be readily understood by those familiar with the art that thestructure illustrated in Fig. 1 may constitute a half unit of anarticulated locomotive or may constitute one-half of a locomotive havinga rigid wheel base between drivers, both halves corresponding in everyrespect.

An operative connection is established from the motor shaft 7 to one ofthe driving wheels 3 by means of a bell one arm 9 of which is relativelylong and is connected, at its lower end to a jack shaft shaft by meansof a crank 9 and is similarly connected, at its lower, end 10 by meansof a crank 9 The other arm 11 of the bell crank lever is relativelyshort and forms an obtuse angle with the arm 9. The outer end of theshort arm 11 is c0nnected to one end of a connecting rod 12, the otherend of which is connected to a crank 12 with which the axle of thedriving wheel 3 is provided.

The arrangement of parts is such that, when the center of the crank pin13 of the jack shaft 10 is directly below the center of the jack shaft,the point of connection between the short arm 11 of the bell crank leverS and the connecting rod 12 is .in alinement with the centers of theparts 10 and 13 and is directly below them. The position of the jackshaft is such that the center line of the connecting rod 19 issubstantially horizontal, under normal conditions, and, therefore, theusual vertical adjustment between the driving axle and the vertical bodymay take place with a minimum wear on the operating connections. This isevident from Fig. 1 of the drawings, in which it appears that theconnecting rod 12 is long, relative to a vertical movement of thedriving axle, and, therefore, its outer end may be materially moved ineither direction from the horizontal without causing any bending actionbetween the rod. and the crank pin.

The arrangement shown is specially advantageous when the driving wheelsare relatively small, since the point of connection between the arm 11of the bell crank lever 8 and the connecting rod 12 is considerablybelow the center of the jack shaft which crank lever 8,

to a jack shaft be conveniently disposed consequently may 14: supportedby the in suitable bearings vehicle frame.

As shown in Fig. 2, the propelling motor is similarly connected to thedriving Wheel 3 at the opposite side of the locomotive, one of theconnections being preferably advanced through an angle of substantially90 degrees, in the usual manner.

I claim as my invention:

1. The combination With a driven axle, a propelling motor and a jackshaft, of an operative connection between the motor shaft and the drivenaxle comprising cranks mounted upon the respective shafts, a bell cranklever connecting the motor shaft crank to the jack shaft crank, and :1connecting rod connecting the driven axle crank to the short arm of thebell crank lever.

2. In an electric vehicle, the combination with a driven axle, a bodyframe mounted on said axle, a driving motor having a stationary framerigidly secured to the body frame of the vehicle, and a jack shaftsubstantially parallel to the axis of the motor and to the axle, of anoperative connection between the jack shaft and the motor comprising onearm of a bell crank lever, and an operative connection between the otherarm of the bell crank lever and the axle.

3. In an electric vehicle, the combination with a driven axle, a bodyframe mounted thereon, a propelling motor rigidly secured to the bodyframe above the axle and a short distance to one side of it, and a jackshaft rotatably mounted on the body frame of the vehicle at a shortdistance above the axle and at a considerable distance to one side ofit, of an operative connection between the propelling motor and the axlecomprising suitable cranks, a bell crank lever one arm of whichconstitutes a side rod connection between the motor and the jack shaft,and a side rod connected atone end to the axle crank and at the otherend to a shortarm of the bell crank lever.

In testimony whereof, I have hereunto subscribed my name this l lth dayof July, 1909.

\VILLIAM COOPER.

\Vitnesses R. J. DEARBORN, B. B. I-IINES.

Copies of this patent may be obtained for five cents each,

Washington, D. C.

